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USGS Daily Statistics for the Nation

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 01581920 GUNPOWDER FALLS NEAR PARKTON, MD


Baltimore County, Maryland
Hydrologic Unit Code 02060003
Latitude  39°37'08.6", Longitude  76°41'25.3" NAD83
Drainage area 81.5  square miles
Gage datum 355.43 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month
Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1999-10-01 -> 2024-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 104 112 118 129 167 107 73 116 90 105 126 86
2 108 97 158 133 130 124 70 124 99 107 96 87
3 101 110 127 140 117 112 71 107 89 101 92 88
4 98 142 113 126 119 125 72 136 86 90 82 81
5 96 137 119 115 126 123 69 109 85 88 81 81
6 97 141 108 110 132 125 69 100 83 92 86 79
7 96 145 101 111 137 119 88 97 134 88 83 86
8 92 119 99 119 128 118 108 97 246 83 77 94
9 90 103 100 116 118 111 93 94 138 84 73 99
10 94 97 113 106 109 110 80 87 131 83 76 95
11 105 97 168 102 108 114 75 81 114 105 75 116
12 116 95 152 105 109 124 80 75 111 104 80 122
13 106 98 142 123 108 115 80 83 110 93 89 96
14 117 94 147 119 105 110 77 85 100 92 80 92
15 111 92 130 128 110 104 75 83 101 93 75 100
16 108 99 120 131 134 99 76 83 98 88 86 130
17 108 106 114 125 129 97 86 84 98 87 84 119
18 117 98 107 109 112 100 82 78 102 89 79 106
19 109 91 105 107 130 94 80 76 101 81 76 95
20 120 89 104 114 123 92 81 74 107 78 84 91
21 109 94 110 111 116 92 79 71 99 73 78 104
22 98 99 145 109 112 86 73 76 95 71 77 101
23 102 104 120 118 108 85 96 83 124 68 117 113
24 112 110 124 112 106 85 173 89 112 71 102 115
25 127 124 117 105 107 86 166 88 103 74 111 136
26 119 107 111 110 109 90 157 90 100 70 91 131
27 109 104 103 128 111 91 109 95 108 81 93 124
28 102 107 112 122 121 89 100 103 118 94 85 116
29 98 120 123 116 117 82 91 134 132 127 84 109
30 98   129 151 111 75 89 97 121 190 84 102
31 158   137   109   91 87   125   98